Value Collection CR-9 Cartridge Roll Mandrel Quick Change

Product Description

The VALUE COLLECTION CR-9 is a quick-change cartridge roll mandrel designed to hold abrasive cartridge rolls for use with rotary tools and die grinders. It features a 0.125-inch pilot diameter with a 1-inch pilot length, and a 0.25-inch shank diameter with a 1-inch shank length, giving an overall length of 2.75 inches. The quick-change design allows fast swap-out of cartridge rolls without removing the mandrel from the tool, reducing downtime during surface finishing, deburring, and blending operations. Machinists, tool and die workers, and fabricators rely on this type of mandrel for precision interior and contoured surface work.

This mandrel is suited for use in machine shops, fabrication facilities, and maintenance environments where cartridge rolls are used to finish bores, ports, slots, and contoured surfaces. It is compatible with standard die grinders and flexible-shaft machines that accept a 0.25-inch shank. Typical applications include deburring, blending weld seams, and smoothing interior radii on metal workpieces. The 0.125-inch pilot seats securely inside cartridge roll IDs sized for that pilot diameter, keeping the roll concentric during operation.

Key Features

• Quick-change design allows rapid cartridge roll replacement without tool removal
• 0.125-inch pilot diameter with 1-inch pilot length for secure roll seating
• 0.25-inch shank diameter compatible with standard die grinder chucks
• 2.75-inch overall length provides reach into bores and recessed areas
• Lightweight at 0.04 pounds for reduced operator fatigue during extended use

Compatibility

Designed as an OEM-style replacement mandrel for use with abrasive cartridge rolls requiring a 0.125-inch pilot diameter, for use in die grinders and rotary tools accepting a 0.25-inch shank.

Installation Notes

Installation is performed by machinists or tool operators using a standard die grinder with a 0.25-inch collet. Ensure the tool is powered off and disconnected from the air supply or electrical source before inserting or removing the mandrel. Slide the cartridge roll onto the pilot and engage the quick-change retention mechanism fully before operating. Inspect the pilot and shank for wear or damage before each use and replace the mandrel if any deformation is present.